Fitting the age-dependent profile of CCR9 expression, CD11c+ DC derived from MLN of young BALB/c mice comprised significantly higher frequencies CD103+ALDH+ DC at day 6 post-infection compared to DC from older individuals of the same line as well as compared to DC from age-matched C57BL/6 mice (Fig. 3G). The gene discussed is LDHA; the disease is infection.